John Deere takes its responsibility to the environment very seriously. We have been working on lowering engine emissions since 1967, years before government standards were set. We have taken an integrated approach to cleaner air while improving fuel economy and engine performance.
Diesel Engine Evolution
John Deere diesel engines feed on innovation. From the first to the Final Tier 4 engines, we’ve adopted new technologies that satisfy emissions regulations without sacrificing performance.
Marine Tier 3 Engines
John Deere Power Systems is pleased to announce new Marine Tier 3 PowerTech™ 4.5L and 6.8L propulsion and generator-drive engines. John Deere will meet U.S. Environmental Protection Agency Marine Tier 3 emissions regulations that began to take effect in 2009 based on cylinder displacement and power per displacement. These engines also will achieve compliance with International Maritime Organization Tier II emissions regulations and EU 97/68/EC.
Diesel Engine Retrofit Information
Learn about your national, regional, state, and local retrofit programs and regulations.
Check out our Diesel Engine Retrofit Device Lookup Tool
Learn about NAAQS and Non-attainment information
Final Tier 4/Stage IV Technology See how John Deere maximizes performance with the Integrated Emissions Control system2:23
Interim Tier 4/Stage III B TechnologyLearn about our IT4 technology and building-block approach to emissions regulations3:17
Exhaust Filter CleaningLearn how John Deere exhaust filters are designed to meet the demands of rugged off-highway applications6:37
Final Tier 4/Stage IV Technology
See how John Deere maximizes performance with the Integrated Emissions Control system
EMISSION HUB BLOG